questionsmedicales.fr
Produits chimiques inorganiques
Oxygène singulet
Oxygène singulet : Questions médicales fréquentes
Termes MeSH sélectionnés :
Diagnostic
5
Oxygène singulet
Spectroscopie
Fluorescence
Chimiluminescence
Spectroscopie
Oxygène singulet
Oxygène singulet
Sang
Effets biologiques
Stress oxydatif
Oxygène singulet
Marqueurs biologiques
Imagerie médicale
Oxygène singulet
Tissus
Symptômes
5
Oxygène singulet
Inflammation
Douleur
Oxygène singulet
Cancer
Maladies neurodégénératives
Lésions oxydatives
Oxygène singulet
Fonction cellulaire
Vieillissement cutané
Oxygène singulet
Dommages cellulaires
Tissus pulmonaires
Oxygène singulet
Symptômes respiratoires
Prévention
5
Pollution
Oxygène singulet
Antioxydants
Alimentation
Oxygène singulet
Antioxydants
Tabagisme
Oxygène singulet
Radicaux libres
Stress oxydatif
Oxygène singulet
Hygiène de vie
Exercice
Oxygène singulet
Défense antioxydante
Traitements
5
Antioxydants
Oxygène singulet
Traitement
Médicaments
Oxygène singulet
Antioxydants
Thérapie photodynamique
Oxygène singulet
Cellules cancéreuses
Prévention
Oxygène singulet
Antioxydants
Suppléments
Oxygène singulet
Antioxydants
Complications
5
Complications
Oxygène singulet
Maladies cardiovasculaires
Cancer
Oxygène singulet
Radicaux libres
Vieillissement cellulaire
Oxygène singulet
Maladies chroniques
Système immunitaire
Oxygène singulet
Infections
Troubles respiratoires
Oxygène singulet
Lésions pulmonaires
Facteurs de risque
5
Facteurs de risque
Oxygène singulet
Pollution
Âge
Oxygène singulet
Dommages cellulaires
Stress oxydatif
Oxygène singulet
Effets nocifs
Maladies préexistantes
Oxygène singulet
Diabète
Produits chimiques
Oxygène singulet
Toxiques
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"name": "Comment détecter l'oxygène singulet ?",
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"text": "L'oxygène singulet peut être détecté par des méthodes spectroscopiques comme la fluorescence."
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},
{
"@type": "Question",
"name": "Quels tests mesurent l'oxygène singulet ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des tests de chimiluminescence et de spectroscopie UV-visible sont utilisés."
}
},
{
"@type": "Question",
"name": "L'oxygène singulet est-il mesurable dans le sang ?",
"position": 3,
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"@type": "Question",
"name": "Quels indicateurs biologiques sont liés à l'oxygène singulet ?",
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"text": "Les marqueurs de stress oxydatif, comme les produits de peroxydation, peuvent indiquer sa présence."
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"@type": "Question",
"name": "Peut-on évaluer l'oxygène singulet par imagerie ?",
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"@type": "Question",
"name": "Quels symptômes sont associés à l'oxygène singulet ?",
"position": 6,
"acceptedAnswer": {
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"text": "L'oxygène singulet peut causer des dommages cellulaires, entraînant inflammation et douleur."
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{
"@type": "Question",
"name": "L'oxygène singulet provoque-t-il des maladies ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, il est impliqué dans des maladies comme le cancer et les maladies neurodégénératives."
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"@type": "Question",
"name": "Quels effets l'oxygène singulet a-t-il sur les cellules ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Il peut induire des lésions oxydatives, affectant la fonction cellulaire et la survie."
}
},
{
"@type": "Question",
"name": "L'oxygène singulet affecte-t-il la peau ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, il peut provoquer un vieillissement cutané prématuré et des dommages aux cellules de la peau."
}
},
{
"@type": "Question",
"name": "Y a-t-il des symptômes respiratoires liés à l'oxygène singulet ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des dommages aux tissus pulmonaires peuvent survenir, entraînant des symptômes respiratoires."
}
},
{
"@type": "Question",
"name": "Comment réduire l'exposition à l'oxygène singulet ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Éviter les environnements pollués et utiliser des antioxydants peut aider à réduire l'exposition."
}
},
{
"@type": "Question",
"name": "L'alimentation peut-elle prévenir les effets de l'oxygène singulet ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une alimentation riche en fruits et légumes antioxydants peut aider à prévenir les dommages."
}
},
{
"@type": "Question",
"name": "Le tabagisme augmente-t-il les risques liés à l'oxygène singulet ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le tabagisme génère des radicaux libres, augmentant les effets nocifs de l'oxygène singulet."
}
},
{
"@type": "Question",
"name": "Le stress oxydatif peut-il être évité ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Réduire le stress, avoir une bonne hygiène de vie et consommer des antioxydants aide à prévenir."
}
},
{
"@type": "Question",
"name": "Les exercices physiques aident-ils à prévenir les effets de l'oxygène singulet ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'exercice régulier peut améliorer la défense antioxydante de l'organisme."
}
},
{
"@type": "Question",
"name": "Comment traiter les effets de l'oxygène singulet ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des antioxydants peuvent être utilisés pour neutraliser les effets nocifs de l'oxygène singulet."
}
},
{
"@type": "Question",
"name": "Y a-t-il des médicaments spécifiques pour l'oxygène singulet ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Il n'existe pas de médicaments spécifiques, mais des traitements antioxydants sont recommandés."
}
},
{
"@type": "Question",
"name": "Les thérapies photodynamiques utilisent-elles l'oxygène singulet ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elles exploitent l'oxygène singulet pour détruire les cellules cancéreuses."
}
},
{
"@type": "Question",
"name": "Comment prévenir les dommages causés par l'oxygène singulet ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'utilisation d'antioxydants et la réduction de l'exposition aux polluants peuvent aider."
}
},
{
"@type": "Question",
"name": "Les suppléments antioxydants sont-ils efficaces ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Ils peuvent réduire les effets de l'oxygène singulet, mais leur efficacité varie selon les individus."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir avec l'oxygène singulet ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications incluent des maladies cardiovasculaires et des troubles neurodégénératifs."
}
},
{
"@type": "Question",
"name": "L'oxygène singulet peut-il causer des cancers ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, il est impliqué dans la formation de radicaux libres, augmentant le risque de cancer."
}
},
{
"@type": "Question",
"name": "Y a-t-il des effets à long terme de l'oxygène singulet ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des effets à long terme incluent le vieillissement cellulaire et des maladies chroniques."
}
},
{
"@type": "Question",
"name": "L'oxygène singulet affecte-t-il le système immunitaire ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, il peut altérer la fonction immunitaire, rendant l'organisme plus vulnérable aux infections."
}
},
{
"@type": "Question",
"name": "Des troubles respiratoires peuvent-ils être causés par l'oxygène singulet ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, il peut provoquer des lésions pulmonaires, entraînant des troubles respiratoires."
}
},
{
"@type": "Question",
"name": "Quels sont les facteurs de risque liés à l'oxygène singulet ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les facteurs incluent le tabagisme, la pollution, et une alimentation pauvre en antioxydants."
}
},
{
"@type": "Question",
"name": "L'âge est-il un facteur de risque pour l'oxygène singulet ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le vieillissement augmente la susceptibilité aux dommages causés par l'oxygène singulet."
}
},
{
"@type": "Question",
"name": "Le stress oxydatif est-il un facteur de risque ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, un stress oxydatif accru peut augmenter les effets nocifs de l'oxygène singulet."
}
},
{
"@type": "Question",
"name": "Les maladies préexistantes augmentent-elles les risques ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des maladies comme le diabète et les maladies cardiovasculaires augmentent les risques."
}
},
{
"@type": "Question",
"name": "L'exposition à des produits chimiques est-elle un risque ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'exposition à des produits chimiques toxiques peut augmenter la production d'oxygène singulet."
}
}
]
}
]
}
Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 30/03/2025
Contenu vérifié selon les dernières recommandations médicales
4 publications dans cette catégorie
Affiliations :
State Key Laboratory of Fine Chemicals, Department of Pharmacy, Dalian University of Technology 2 Linggong Road 116024 Dalian China.
Publications dans "Oxygène singulet" :
3 publications dans cette catégorie
Affiliations :
State Key Laboratory of Fine Chemicals, and Department of Pharmaceutical Science, Dalian University of Technology, 2 Linggong Road, 116024, Dalian, China.
Publications dans "Oxygène singulet" :
3 publications dans cette catégorie
Affiliations :
Department of Biophysics, Faculty of Science, P. J. Šafárik University in Košice, Jesenná 5, 041 54 Košice, Slovakia.
Publications dans "Oxygène singulet" :
3 publications dans cette catégorie
Affiliations :
Department of Biophysics, Faculty of Science, P. J. Šafárik University in Košice, Jesenná 5, 041 54 Košice, Slovakia.
Publications dans "Oxygène singulet" :
3 publications dans cette catégorie
Affiliations :
Institute of Biogeochemistry and Pollutant Dynamics (IBP), Department of Environmental Systems Science, ETH Zurich, 8092 Zurich, Switzerland.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Institute of Physics, Photobiophysics, Humboldt University of Berlin, Newtonstr. 15, 12489 Berlin, Germany.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 16200 Prague, Czech Republic.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 16200 Prague, Czech Republic.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Laboratory of Microbiology and Oncology, Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
State Key Laboratory of Fine Chemicals, and Department of Pharmaceutical Science, Dalian University of Technology, 2 Linggong Road, 116024, Dalian, China.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
State Key Laboratory of Fine Chemicals, and Department of Pharmaceutical Science, Dalian University of Technology, 2 Linggong Road, 116024, Dalian, China.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
State Key Laboratory of Fine Chemicals, and Department of Pharmaceutical Science, Dalian University of Technology, 2 Linggong Road, 116024, Dalian, China.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
School of Physics, Harbin Institute of Technology, Harbin, 150001, China.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China. Electronic address: qinfeng@hit.edu.cn.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
School of Physics, Harbin Institute of Technology, Harbin, 150001, China; School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China. Electronic address: zhangzhiguo@hit.edu.cn.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Department of Chemistry and Biochemistry, California State University, Los Angeles, CA, USA.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Department of Chemistry and Biochemistry, California State University, Los Angeles, CA, USA.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Department of Chemistry and Biochemistry, California State University, Los Angeles, CA, USA.
Publications dans "Oxygène singulet" :
2 publications dans cette catégorie
Affiliations :
Department of Environmental Science Systems, ETH Zurich, Zurich 8092, Switzerland.
Department of Chemistry, University of British Columbia, Vancouver V6T 1Z1, Canada.
Publications dans "Oxygène singulet" :
As society ages, the number of older adults with stable ischemic heart disease continues to rise. Older adults exhibit the greatest morbidity and mortality from stable angina. Furthermore, they suffer...
Stable angina, one manifestation of chronic coronary syndrome (CCS), is characterised by intermittent episodes of insufficient blood supply to the myocardium, provoking symptoms of myocardial ischaemi...
Percutaneous coronary intervention (PCI) is frequently performed to reduce the symptoms of stable angina. Whether PCI relieves angina more than a placebo procedure in patients who are not receiving an...
We conducted a double-blind, randomized, placebo-controlled trial of PCI in patients with stable angina. Patients stopped all antianginal medications and underwent a 2-week symptom assessment phase be...
A total of 301 patients underwent randomization: 151 to the PCI group and 150 to the placebo group. The mean (±SD) age was 64±9 years, and 79% were men. Ischemia was present in one cardiac territory i...
Among patients with stable angina who were receiving little or no antianginal medication and had objective evidence of ischemia, PCI resulted in a lower angina symptom score than a placebo procedure, ...
Stable angina develops during physical activity or stress, and it is typically an aspect of Coronary Heart Disease (CHD) that can lead to arrhythmia, heart failure and even sudden death. ANRIL, an Ant...
The authors enrolled 62 patients with myocardial infarction and 59 with stable angina before primary percutaneous coronary intervention, as well as 48 healthy volunteers. Their peripheral blood was co...
The data showed that ANRIL is a better diagnostic indicator than cardiac troponin I in patients with stable angina and that the levels of ANRIL are higher in patients with stable angina than those wit...
The levels of ANRIL in peripheral plasma could be used as a good biomarker for stable angina....
This study tested the hypothesis that the combination of cold temperature and wind further reduces time to ischemia during treadmill stress testing compared with cold temperature alone....
Eighteen participants (56 ± 9 yr) with stable angina performed four treadmill stress tests in a randomized crossover design at +20°C and -8°C, with and without a 24-km·h -1 headwind. Time to ischemia ...
At -8°C, time to ischemia was reduced by 22% (-58 s (-85 to -31 s), P < 0.01) compared with +20°C. The addition of wind at -8°C reduced time to ischemia by a further 15% (-31 s (-58 to -4 s) vs -8°C w...
The presence of wind reduces time to ischemia when exercise stress testing is performed in a cold environment. These results suggest that wind should be considered when evaluating the risks posed by c...
The Danlou tablets (DLT) is a patented Chinese medicine that can effectively ameliorate coronary heart disease- and angina pectoris-related chest congestion and pain. However, the mechanism underlying...
Ranolazine is used to treat stable angina pectoris, the most common symptom of ischemic heart disease. Appropriate management of chronic stable angina pectoris is essential from both a clinical and an...
This systematic review and meta-analysis adhered to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We included cost-utility analyses, which compared ranolazine with oth...
The pooled results from 7 selected studies with a time horizon of 1 year show that add-on ranolazine was significantly cost-effective compared with standard treatment, with a pooled incremental net be...
Pooled evidence suggests that add-on ranolazine therapy is cost-effective for chronic stable angina pectoris up to a 1-year time horizon. There is a lacuna of evidence from low- and middle-income coun...
The hyperaemic stenosis resistance (HSR) index was introduced to provide a more comprehensive indicator of the haemodynamic severity of a coronary lesion. HSR combines both the pressure drop across a ...
We aimed to identify the diagnostic and prognostic value of HSR and evaluate the clinical implications....
Patients with chronic coronary syndromes (CCS) and obstructive coronary artery disease were selected from the multicentre ILIAS Registry. For this study, only patients with combined Doppler flow and p...
A total of 853 patients with 1,107 vessels were included. HSR more accurately identified the presence of inducible ischaemia compared to FFR and CFR (area under the curve 0.71 vs 0.66 and 0.62, respec...
The present study affirms the theoretical advantages of the HSR index for the detection of ischaemia-Âinducing coronary lesions in a large CCS population. (Inclusive Invasive Physiological Assessment ...
Stable angina pectoris (SAP) is one of the main types of coronary heart disease (CHD). To improve treatment outcomes, more effective biomarkers are needed. Currently, studies on the metabolic characte...
Thirty patients with SAP patients and 30 healthy controls (CON) without stenosis were selected for this study. All patients underwent coronary angiography. The metabolites of the two groups' serum sam...
OPLS-DA analysis identified significant differences in the serum metabolic profiles between patients with SAP and CON. Twenty-five differential metabolites were identified between patients from SAP an...
By comparing the serum metabolic profiles of SAP patients with a control group, we identified 25 potential biomarkers that could improve the clinical diagnosis and treatment of SAP....
Coronary healed plaques (HPs) reportedly have high vulnerability or show advanced atherosclerosis and a risk of rapid plaque progression. However, the prognosis of stable angina pectoris (SAP) patient...
In SAP patients, HPs had greater complexity of lesions and higher vulnerability, which may have contributed to the poorer post-PCI outcomes....